/Engine/Source/Runtime/Engine/Classes/Engine/NetDriver.h
Determines which other connections should receive the voice packet and queues the packet for those connections. Used for sending both local/remote voice packets.
virtual void ReplicateVoicePacket ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< class [FVoicePacket](API\Runtime\Engine\Net\FVoicePacket) > VoicePacket, class [UNetConnection](API\Runtime\Engine\Engine\UNetConnection) * CameFromConn )